Hot Water System Adelaide

Your Local Hot Water Systems Plumber

Adelaide Hot Water Plumbers โ€“ We Repair Before We Replace

The average Adelaide hot water system fails at 8 to 12 years. Ours is to figure out which stage yours is at – and give you the honest option. Element replaced today for $200 to $450, or a properly sized new system installed same-day with STC rebate advice included. Licensed gas fitters and electricians on every job.

  • Repairs from $99
  • Licensed Plumbers

  • STC Rebate Advice
  • Same-Day Service
Hot Water System Adelaide

Hot Water System Adelaide– We Repair Before We Replace

The average Adelaide hot water system fails at 8 to 12 years. Ours is to figure out which stage yours is at – and give you the honest option. Element replaced today for $200 to $450, or a properly sized new system installed same-day with STC rebate advice included. Licensed gas fitters and electricians on every job.

  • Repairs from $99
  • Same-Day Service

Our Hot Water System

Every Hot Water System We Service Across Adelaide

Different hot water systems fail in different ways. Gas continuous flow throws error codes. Electric storage tanks lose their element. Solar systems fail at the booster before the panels. Heat pumps are usually a fan or thermistor issue. We diagnose the actual fault before quoting – and price the repair honestly against the cost of replacement.

Adelaide plumber working on a gas hot water system installation for a home.

Gas Continuous Flow Systems

Rinnai Infinity, Bosch Hydropower, Rheem Metro. Endless hot water when it works, error codes when it does not. We decode Rinnai codes 10 to 99, replace ignition modules, water valves and heat exchangers. Most repairs are same-day.

Gas Fitters & Repairs

Rheem Stellar, Vulcan Freeloader, Dux Prodigy. Slow recovery, pilot light won’t stay lit, or a rusting tank base. We service every gas storage system in Adelaide with a licensed gas fitter on every job.

gas-storage-hot-water-heater-installation

Rheem Optima, Dux Proflo, AquaMax. J-tariff off-peak systems a specialty. Elements last 6 to 9 years in Adelaide’s hard water. Element and thermostat replacement is our most common same-day repair, from $250 to $450 installed.

solar-hot-water-heater-installation

Solahart, Rheem Loline, Apricus, Edwards. The booster fails long before the panels do. We service pumps, controllers, sensors and boosters. New solar installs eligible for STC rebates of $700 to $1,400.

Plumber checking a Rinnai HotFlo Water Heater

Heat Pump Systems

Reclaim, Sanden, Chromagen Midea. The most efficient option for Adelaide’s climate, cutting running costs by 60 to 75 percent versus electric. STC rebates plus SA state incentives available on new installs.

Hot Water Unit

Gravity Fed & Older Systems

Common in Adelaide Hills and pre-1990 homes. Roof-mounted tanks with gravity flow. We repair what can be repaired and advise honestly when it is time to upgrade to a modern pressure system.

URGENT HOT WATER HELP

NO HOT WATER OR SYSTEM LEAKING? DO NOT WAIT.

A leaking, noisy or unreliable hot water system can get worse quickly. Tell us what is happening and we will help you work out the fastest way to get hot water restored today.

$0 Call-Out Fee*

You pay for the repair, not the visit

Price Before We Start

Quoted upfront, agreed before work begins

HOT WATER REPAIRS

Electric, gas and storage system faults checked

REPAIR OR REPLACE

Honest advice if your system is worth fixing

The Repair or Replace Decision

Should You Repair or Replace Your Hot Water System? Honest Guide for Adelaide Homes

Not every hot water problem needs a new system. Not every system that fails is worth repairing. Here is how our licensed Adelaide plumbers assess the honest answer at your property – based on age, symptom, & repair cost against replacement value.

System Age Symptom What We Usually Recommend Typical Cost
Under 5 years Element or thermostat failure Repair – part is cheap, system life ahead $250-$450
5-8 years Element failure, first time Repair – still economic $250-$450
5-8 years Tank leaking Replace – leaks do not repair $1,800-$3,500
8-12 years Element failure, second time Replace – money better spent on new $1,800-$3,500
8-12 years Slow recovery, running out Assess – often replace with correct size Quote after check
12+ years Any major fault Replace – past economic life $1,800-$3,500
Any age – gas system Error code Rinnai, Bosch Diagnose first – most codes are fixable $300-$650
Any age – solar Booster failure Repair booster – panels usually fine $400-$800

 

Pricing Disclaimer – All prices shown are typical ranges based on standard installations and common scenarios. Actual cost may vary depending on factors such as tank size and type, access and location, existing plumbing or wiring condition, compliance or council requirements, parts availability, and site-specific conditions discovered on inspection. These figures are provided as a general guide only and do not constitute a fixed quote. A final price will always be confirmed after an on-site assessment, before any work begins.

Plumber checking a Rinnai HotFlo Water Heater
Replacement Pricing & STC Rebates

Hot Water Replacement Pricing Adelaide (2026) – Before and After STC Rebate

Below is what a new hot water system typically costs installed in an Adelaide home in 2026, before and after Small-scale Technology Certificate (STC) rebates. Solar and heat pump systems qualify for STC rebates that come off your invoice at time of purchase – we handle the paperwork.

Electric Hot Water heaters
System Type Installed Cost STC Rebate Net Cost
Electric Storage 315L $1,800 to $2,400 Not eligible $1,800-$2,400
Gas Storage 170L $2,200 to $2,900 Not eligible $2,200-$2,900
Gas Continuous Flow $2,400 to $3,200 Not eligible $2,400-$3,200
Solar Hot Water roof-mount $4,500 to $6,500 Around $700 to $1,400 $3,100-$5,800
Solar Hot Water split system $5,500 to $7,500 Around $700 to $1,400 $4,100-$6,800
Heat Pump Hot Water $4,200 to $5,800 Around $1,000 to $1,600 $2,600-$4,800

 

Pricing Disclaimer – The figures listed above are indicative only and reflect common jobs under typical conditions. Your actual cost can vary based on factors such as the size and age of the unit, ease of access, the condition of existing pipework or wiring, any compliance work required, and what we find once we’ve had a proper look. Nothing here should be treated as a firm quote – we’ll always inspect the job first and give you a confirmed price before any work goes ahead.

How It Works

What Happens When You Call About Hot Water

Phone Diagnostic
(2 to 5 Minutes)

We ask what your system is (gas, electric, solar, heat pump), how old it is, and what it is doing. Sometimes we can walk you through resetting a tripped element, relighting a pilot, or clearing a Rinnai error code. If we fix it on the phone, there is no callout.

Same-Day Booking or a Time That Suits

If it needs a visit, we book the same day if you are without hot water, or the earliest suitable time if not urgent. You get a two-hour arrival window with SMS confirmation when the plumber is on the way.

On-Site Diagnosis Before Any Quote

We test the actual fault – element, thermostat, gas valve, sensor, controller – rather than guess. Then we show you the honest options: repair with expected life ahead, or replace with a rebate-inclusive quote. You decide.

Repair Today or Replace Same-Day

Common parts on every truck (elements, thermostats, TPR valves, ignition modules). If a replacement system is needed, we carry the common storage tank sizes and can install same-day.

NOT SURE WHATโ€™S WRONG?

Check Your Hot Water System In 10 Seconds

Tick anything you have noticed at home. Strange noises, leaks, weak pressure or water that runs cold can all point to a hot water system fault that should be checked early.

Nothing ticked yet

Select the signs you have noticed and we will tell you how urgent it looks.

 

Wills Plumbing Adelaide Pty Ltd place picture
5.0
Based on 502 reviews
Peter Aquilina profile picture
Peter Aquilina
2 weeks ago
Will came to my house to look at the roof stormwater drainage to the street. I only recently moved into this second-hand home and they had all sorts of DIY-looking downpipes, some of which went nowhere. He thoroughly investigated the issue, reassured me and came up with a good plan to fix it in a cost effective manner. On top of being professional he was also very personable and I had full confidence in his advice.
kaye gray profile picture
kaye gray
3 weeks ago
Fantastic experience. William was prompt friendly and polite. He got down to business straight away and didnโ€™t waste time. He laid it all out and provided his honest opinion. He has the experience we needed to do the job and also showed us the inside of our pipes with the camera.
Ros Zappia profile picture
Ros Zappia
3 weeks ago
Jason Webster profile picture
Jason Webster
3 weeks ago
Thank you for the service and excellent help. Came out for our emergency blockage and checked out the house. Diagnosed the fault and supported us with SA water to resolve the issue.

Amazing work will recommend and call again!!!
Cheryl Webster profile picture
Cheryl Webster
3 weeks ago
I contacted Will late on a Sunday afternoon with blocked drains and not only did he respond quickly, but he made time to come first thing Monday morning. Will was professional and lovely to deal with. He went above and beyond contacting SA Water on our behalf, and followed up with me throughout the day to see how the job was progressing. As it turned out, the issue was on SA Water's side, but without Will's expertise and help I would never have known and possibly spent a lot of money paying for work that I wasn't liable for. I would highly recommend Wills Plumbing Adelaide.
Jimmy Bradford profile picture
Jimmy Bradford
1 month ago
If you would like to get 5-star reviews and remove negative reviews from Google, contact me via my profile; my WhatsApp contact details are listed there.
sarah farrell profile picture
sarah farrell
1 month ago
Canโ€™t recommend Wills Plumbing enough, we had a blocked drain not allowing our toilets to flush, and when we called Will he arrived and got our drains repaired on the same day. High recommended
Lisa Rosevear profile picture
Lisa Rosevear
2 months ago
So happy with the services we receive from Will. He always does a great job. Always friendly, explains everything clearly, reliable and prompt. Highly recommend.
Karen profile picture
Karen
2 months ago
Will attended to a blocked drain call out and he was amazing and he talked me through every step. He resolved the drain issues professionally. I felt at ease through out the process. Would highly recommend
Justin Williams profile picture
Justin Williams
2 months ago
Will is amazing came out late Friday afternoon to help us with a blocked kitchen drain. After only a matter of minutes he had it cleared and working. Honest up front about costs and scopes of work. Highly recommended and will definitely be using for future works.
Anthea Pietsch profile picture
Anthea Pietsch
3 months ago
William was excellent in his communication before, during and after his visit. He was clear with his explanation of our water hammer and pressure issues and transparent with his recommendations for remedies and cost. He was also friendly and understanding as I managed small children and our dog while he worked. Our water hammer issue appears to be fixed - he has asked us to keep him posted if we experience any further issues. Ongoing care - tick! We really felt well looked after and couldnโ€™t recommend William highly enough. Thanks!
suzane lim profile picture
suzane lim
4 months ago
We had Will come out to fix our leaky bathroom tap recently. Very pleased with the outcome. Good communicator, goes the extra mile to get the job done, honest and does not overcharge. Won't hesitate to call on Wills Plumbing again. Worth the wait.
Mark Mazar profile picture
Mark Mazar
7 months ago
Will was a pleasure to work with. His communication was clear and responsive from start to finish. He went the extra mile by offering practical DIY ideas that could save us money, rather than immediately opting for a call out. Overall, Will's approachable attitude and willingness to help made a great impression. Weโ€™ll definitely reach out to him first for any future plumbing needs.
Same-Day Service

No Hot Water This Adelaide Winter Morning?

Cold showers, no dishes, kids not going to school clean. We know why you are on this page. Call us before you touch the isolation switch again – we can talk you through a two-minute diagnostic on the phone and get a plumber to you the same morning if it needs one.

โ˜… 5.0 Star On Google

$0 Call-Out Fee*

Open 24/7

Licensed & Insured

Adelaide plumber organizing tools for gas hot water system servicing. Title: Reliable Gas Hot Water System Servicing in Adelaide
FAQ

Hot Water Questions Adelaide Homeowners Actually Ask Us

A thermostat that has failed in the open position, a broken sensor sending wrong readings to the controller, or a stuck TPR valve. This is a safety issue and can cause burns – turn the system off at the isolation switch and call 0484 600 095 for same-day repair. On electric systems, it is usually a thermostat, quoted at $200 to $400 installed.
For gas systems, the pilot light has usually gone out overnight, or the ignition module has failed. For electric, an element or thermostat has failed, or the circuit has tripped. Call us first before touching anything – half of these calls are solved on the phone with a walkthrough, no callout charged.
Electric storage 8 to 12 years. Gas storage 10 to 15 years. Gas continuous flow 15 to 20 years. Solar systems 12 to 18 years for panels, 8 to 10 for the booster. Heat pumps around 15 years. Adelaide’s hard water (especially in northern suburbs) shortens these numbers by 20 to 30 percent if the anode rod is never replaced.
Ignition failure – the system tried to fire but the flame did not establish. Causes are gas supply issue, dirty flame rod, or worn ignition module. Usually a same-day fix from $300 to $650 depending on cause. Other common Rinnai codes we service daily: 10 (ignition failure), 12 (flame failure), 16 (over-temperature), 25 (drain issue), 99 (fan or exhaust).
Electric storage 315L from $1,800 to $2,400 installed. Gas storage 170L from $2,200 to $2,900. Gas continuous flow from $2,400 to $3,200. Solar hot water from $4,500 (before STC rebate of $700 to $1,400). Heat pump from $4,200 (before STC rebate of $1,000 to $1,600). Every installation includes removal of the old system and Certificate of Compliance.
Yes, if you replace or install a solar or heat pump system. The Federal STC scheme gives you Small-scale Technology Certificates worth $700 to $1,600 depending on system size, deducted from your invoice at time of purchase. We handle all the STC paperwork – you do nothing. SA state incentives may also apply depending on eligibility.
For a first-time element failure on a 10-year-old system, replacement is usually the smarter spend. The system has 2 to 4 years of life ahead at best, and the second element failure will come. For a first-time thermostat failure, repair still makes sense. Our on-site quote gives you both options with honest lifespan expectations.

Sediment buildup at the bottom of the tank displaces hot water storage capacity – common in Adelaide after 5+ years of hard water. Sometimes a broken dip tube mixes cold water with hot at the outlet. Occasionally the thermostat has been turned down. We can flush the tank as a low-cost first step or diagnose properly if flushing does not fix it.

Yes – our vans cover all Adelaide metro suburbs same-day 7 days a week, including the Adelaide Hills. Booking priority goes to no-hot-water situations and leaking tanks. Non-urgent work is booked to a time that suits you.

During business hours, we waive the call-out fee when you go ahead with the quoted work – so if we do the job, you don’t pay a separate call-out fee. If you decide not to proceed, the call-out fee applies for our time and travel.

For after-hours, weekend and public holiday call-outs, the call-out fee applies and isn’t waived. Either way, we tell you the exact fee upfront when you call, before we dispatch anyone. Call 0484 600 095.

Yes. In South Australia, hot water installation must be done by a licensed plumber, and gas hot water specifically requires a licensed gas fitter. DIY installation voids your warranty, voids home insurance, and is illegal for mains water and gas connections. Every install we complete includes a Certificate of Compliance.

Get In Touch

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Quote

No call-out fee* and upfront pricing before work begins.

Hours

Open 24/7 for emergency plumbing support.

Area

Adelaide metro, surrounding suburbs & Adelaide Hills.

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